HPE MR408i-o Gen11 x8 Lanes 4GB Cache OCP SPDM Storage Controller P58335-B21

HPE MR408i-o Gen11 x8 Lanes 4GB Cache OCP SPDM Storage Controller P58335-B21

• Device Type: Storage controller – plug-in card
• Host Bus: PCIe 4.0 x8
• Buffer Size: 4 GB
• Supported Devices: Disk array (RAID)
• Channel Qty: 8
• RAID Level: RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50, RAID 60
• Interfaces: SATA 6Gb/s / SAS 12Gb/s / PCIe 4.0 (NVMe)
• Connections: 1 x PCIe 4.0 x8

The HPE MR408i-o Gen11 x8 Lanes 4GB Cache OCP SPDM Storage Controller (P58335-B21) is a high-performance enterprise RAID controller designed for HPE ProLiant Gen11 servers. Engineered to deliver reliable storage management, advanced data protection, and optimized I/O performance, this controller is ideal for modern data center workloads, virtualization environments, and business-critical applications.

Built on an OCP (Open Compute Project) form factor, the MR408i-o integrates seamlessly into supported HPE Gen11 platforms, offering enhanced security, performance scalability, and enterprise-grade reliability.

Enterprise-Grade RAID Storage Performance

The HPE MR408i-o controller features x8 PCIe lanes and 4GB cache memory, delivering fast data processing and improved storage throughput. The onboard cache enhances read and write operations, reducing latency and improving overall system performance in demanding environments.

This makes the controller ideal for:

• Virtualized server environments

• Enterprise database workloads

• High-performance storage arrays

• Software-defined infrastructure

• Cloud and hybrid cloud deployments

The 4GB cache ensures optimized performance for intensive read/write operations and transactional workloads.

Advanced Data Protection and RAID Support

The MR408i-o Gen11 storage controller supports enterprise RAID functionality to safeguard critical data and maintain system availability. RAID capabilities enable redundancy, performance optimization, and improved fault tolerance.

Common use cases include:

• RAID configurations for enterprise storage

• Redundant data protection

• High-availability server deployments

• Mission-critical application environments

This controller ensures business continuity by minimizing downtime and protecting against drive failures.

OCP Form Factor for Gen11 Integration

Designed specifically for HPE ProLiant Gen11 servers, the MR408i-o uses an OCP storage controller format, enabling clean integration without occupying standard PCIe expansion slots. This allows organizations to maintain flexibility for additional networking or acceleration cards.

Benefits include:

• Optimized server space utilization

• Seamless Gen11 compatibility

• Enterprise-ready architecture

• Simplified server deployment

SPDM Security for Modern Data Centers

The MR408i-o Gen11 controller includes SPDM (Security Protocol and Data Model) support, enhancing hardware-level security and ensuring trusted device communication within the server environment.

Security benefits include:

• Device authentication

• Secure firmware validation

• Protection against unauthorized hardware

• Improved compliance readiness

This makes the controller suitable for enterprise environments that require strict data protection and infrastructure security.

High-Speed x8 Lane Connectivity

With x8 PCIe lane support, the MR408i-o delivers high bandwidth between the storage subsystem and server processor. This ensures optimal performance for:

• High-capacity storage arrays

• NVMe and SAS drive configurations

• Data-intensive workloads

• Enterprise-scale I/O operations

The x8 interface supports modern server architectures requiring fast and reliable data throughput.

Ideal Deployment Scenarios

The HPE MR408i-o Gen11 4GB Cache Storage Controller is ideal for:

• HPE ProLiant Gen11 rack servers

• Enterprise virtualization clusters

• Database and ERP systems

• AI and analytics storage backends

• High-performance computing environments

• Cloud infrastructure deployments

It is especially valuable in environments requiring strong storage performance combined with enterprise security.

Key Specifications

• Model: HPE MR408i-o Gen11

• HPE Part Number: P58335-B21

• Interface: PCIe x8 Lanes

• Cache Memory: 4GB

• Form Factor: OCP Storage Controller

• Security: SPDM Support

• Generation: Gen11 Compatible

• Deployment: Enterprise Servers & Data Centers

Why Choose HPE MR408i-o Gen11 Storage Controller?

• 4GB onboard cache for optimized performance

• x8 PCIe lanes for high-speed data throughput

• Enterprise RAID storage management

• OCP form factor for Gen11 integration

• SPDM security protocol support